Abstract:
A process for the post-treatment of a zeolitic material having an MWW framework structure, the process comprising (i) providing a zeolitic material having an MWW framework structure, wherein the framework structure of the zeolitic material comprises X2O3 and YO2, wherein Y is a tetravalent element and X is a trivalent element and wherein the molar ratio X2O3:YO2 is greater than 0.02:1; (ii) treating the zeolitic material provided in (i) with a liquid solvent system thereby obtaining a zeolitic material having a molar ratio X2O3:YO2 of at most 0.02:1, and at least partially separating the zeolitic material from the liquid solvent system; (iii) treating the zeolitic material obtained from (ii) with a liquid aqueous system having a pH in the range of 5.5 to 8 and a temperature of at least 75° C.
Abstract:
The present invention relates to a process for the conversion of oxygenates to olefins comprising (i) providing a gas stream comprising one or more oxygenates; and (ii) contacting the gas stream with a catalyst; wherein the catalyst comprises a zeolitic material having an MFI, MEL, and/or MWW-type framework structure comprising YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element, said zeolitic material being obtainable and/or obtained according to a method comprising (1) preparing a mixture comprising one or more sources for YO2, one or more sources for X2O3, and one or more solvents; and (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material having an MFI, MEL and/or MWW-type framework structure; wherein the mixture crystallized in step (2) contains 3 wt.-% or less of the one or more elements M based on 100 wt.-% of YO2, wherein M stands for sodium.
Abstract:
The present invention relates to a method for preparing a MOF shaped body in the form of spheres, MOF shaped bodies in the form of spheres and a method of uptake of at least one substance for the purposes of its storage, separation, controlled release, chemical reaction or as support utilizing MOF shaped bodies in the form of spheres.
Abstract:
The present invention relates to extruded shaped bodies containing at least one metal-organic framework (MOF), methods for their preparation and their use.
Abstract:
Described is a process for the production of a zeolitic material having an MFI, MEL, and/or MWW-type framework structure comprising YO2 and X2O3. The process comprises (1) preparing a mixture comprising one or more sources for YO2, one or more sources for X2O3, and one or more solvents; (2) crystallizing the mixture obtained in step (1) to obtain a zeolitic material having an MFI, MEL and/or MWW-type framework structure; and (3) impregnating the zeolitic material obtained in step (2) with one or more elements selected from the group of alkaline earth metals. Y is a tetravalent element, and X is a trivalent element. The mixture crystallized in step (2) contains 3 wt.-% or less of one or more elements M based on 100 wt-% of YO2, wherein M stands for sodium.
Abstract translation:描述了一种生产具有包含YO 2和X 2 O 3的MFI,MEL和/或MWW型骨架结构的沸石材料的方法。 该方法包括(1)制备包含一种或多种YO源的混合物,一种或多种X 2 O 3源和一种或多种溶剂的混合物; (2)使步骤(1)中获得的混合物结晶,得到具有MFI,MEL和/或MWW型骨架结构的沸石材料; 和(3)用一种或多种选自碱土金属的元素浸渍步骤(2)中获得的沸石材料。 Y是四价元素,X是三价元素。 在步骤(2)中结晶的混合物含有3重量%或更少的一种或多种基于100重量%YO 2的元素M,其中M代表钠。